US 10,328,495 B2 · Cutting tool

Abstract

A cutting tool according to an aspect of the present invention is a cutting tool for cutting a rotationally symmetrical surface of a rotating workpiece. The cutting includes the step of feeding the cutting tool in a direction inclined with respect to a rotational axis of the rotationally symmetrical surface, while holding the cutting tool in contact with the rotationally symmetrical surface. In the step of feeding the cutting tool, the cutting tool has a point that is in contact with the rotationally symmetrical surface and the point shifts as the cutting tool is fed. The cutting tool includes: a rake face; a flank face; and a cutting edge connecting the rake face and the flank face. The cutting edge as seen from above the flank face has a shape including at least one arc, and the arc has a radius of curvature of not less than 100 mm and not more than 500 mm.

Claims6

Dependent claims

A cutting tool for cutting a rotationally symmetrical surface of a rotating workpiece,

the cutting tool comprising:
a rake face;
a flank face;
and
a cutting edge connecting the rake face and the flank face,
the cutting edge as seen from above the flank face having a shape including at least one arc,
the arc having a radius of curvature of not less than 100 mm and not more than 500 mm,
the cutting edge as seen from above the flank face further including:
a first end having a convex shape;
and
a second end opposite the first end and having a convex shape, and
the first end and the second end each having a radius of curvature smaller than the radius of curvature of the arc, and
the flank face having a shape tapering from the first and second ends toward a back surface opposite to the rake face.

10 more elements

Dependencies are inferred from the claim text.

Cutting tool

Life of this patent

Cutting tool

Life of this patent

Abstract

Claims6